The following transactions have been journalized and posted to the proper accounts.

1. Mark Call invested $7,000 cash in his new design services business.

2. The business paid the first month's rent with $700 cash.

3. The business purchased equipment by paying $2,000 down and executing a note payable for $4,500.

4. The business purchased supplies for $850 cash.

5. The business billed its clients a total of $4,000 for design services rendered.

6. The business collected $3,000 on account from one of its clients.

How much was net income?